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VAR-202011-1276

Vulnerability from variot - Updated: 2024-11-23 21:58

A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller. Modicon M221 Contains a cryptographic vulnerability.Information may be obtained and information may be tampered with. Modicon TM221 is a programmable controller of Schneider Electric (China) Co., Ltd., used for single device control architecture.

Schneider Electric (China) Co., Ltd. Modicon TM221 has an information leakage vulnerability, which can be exploited by attackers to obtain sensitive information

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CVE-2020-7565 (GCVE-0-2020-7565)

Vulnerability from cvelistv5 – Published: 2020-11-19 21:10 – Updated: 2026-05-29 13:28

Summary

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-29 13:27 UTC

CWE

CWE-326 - Inadequate Encryption Strength

Assigner

schneider CNA under the mitre root

CNA scorecard C 65/100 over 23 records in the last 180 days details

References

2 references

URL	Tags
https://www.se.com/ww/en/download/document/SEVD-2…	x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Modicon M221, all references, all versions	Affected: Modicon M221, all references, all versions

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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